<template>
  <div class="login-page">
    <!-- <van-nav-bar   title="面经登录"/> -->
     <!-- 插槽玩法 -->
      <van-nav-bar>
        <template #title>面经登录</template>
      </van-nav-bar>
      <van-form @submit="onSubmit">
  <van-field
    v-model="username"
    name=username
    label="用户名"
    placeholder="请输入用户名"
    :rules="[{ required: true, message: '请填写用户名' }
      ,
      { pattern: /^\w{5,}$/, message: '用户名至少包含5个字符' }
    ]"
  />
  <!--
  输入框组件
  name是提交给后台的键（根据接口文档匹配）
  rules 验证规则数组
  -->
  <van-field
    v-model="password"
    type="password"
    name="password"
    label="密码"
    placeholder="密码"
    :rules="[{ required: true, message: '请填写密码' },
      {pattern:/^\w{6,}$/,message:'密码必须包含六个字符'}
    ]"
  />
  <div style="margin: 16px;">
    <van-button round block type="info" native-type="submit" >提交</van-button>
  </div>
</van-form>
<router-link class="link" to="/register">注册账号</router-link>
  </div>
</template>

<script>
import { login } from '@/api/user'
export default {
  name: 'LoginPage',
  data () {
    return {
      username: '',
      password: ''
    }
  },
  methods: {

    async onSubmit (values) {
      const { data } = await login(values)// {data}解构赋值
      this.$toast.success('登录成功')
      localStorage.setItem('vant-mobile-exp-token', data.token)
      this.$router.push('/')
    }
  }
}
</script>

<style lang="less" scoped>
.link {
  color: #069;
  font-size: 12px;
  padding-right: 20px;
  display: inline-block;
  width: 100%;
  text-align: right;
  // 解决内边距会撑大盒子
  box-sizing: border-box;
}
</style>
